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09TW Sphenoid Sinus, Right
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09TW0 Open
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09TW0Z No Device
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09TW0ZZResection of Right Sphenoid Sinus, Open Approach
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09TW4 Percutaneous Endoscopic
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09TW4Z No Device
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09TW4ZZResection of Right Sphenoid Sinus, Percutaneous Endoscopic Approach
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09TW7 Via Natural or Artificial Opening
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09TW7Z No Device
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09TW8 Via Natural or Artificial Opening Endoscopic
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09TW8Z No Device
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09TW8ZZResection of Right Sphenoid Sinus, Via Natural or Artificial Opening Endoscopic
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09TWX External
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09TWXZ No Device
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